Question P6 Circles and curved boundaries
A circle has radius 14 cm. Find its circumference. Use π = .
Answer
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Find the space inside a circle shape or the distance around its boundary.
In this one. Circumference is the distance around the circle. Use length units, not square units.
'Area' asks for square centimetres from the radius. 'Circumference' or 'perimeter' on a curved edge asks for plain centimetres from the diameter instead.
Children give a circumference answer in square units, or find a circle's area without squaring the radius first, mixing up the two kinds of measurement.
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